> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lekalao.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Send now

> Checks first that the campaign is ready (list, subject, content, recipients, an allowed sender). The e-mails then leave through the queue, at the provider's pace.



## OpenAPI

````yaml /api-reference/openapi.json post /api/v1/campaigns/{campaign}/send
openapi: 3.1.0
info:
  title: Lekalao API
  version: 1.0.0
  description: >-
    Everything the interface does, your application can do too. Every call
    carries an API token (Settings → API tokens).
servers:
  - url: https://{host}
    description: Your installation
    variables:
      host:
        default: lekalao.example.com
        description: The domain of your own Lekalao
security:
  - bearer: []
tags:
  - name: Lists
  - name: Subscribers
  - name: Tags
  - name: Segments
  - name: Imports
  - name: Templates
  - name: Campaigns
  - name: Automations
  - name: Transactional e-mails
  - name: Revenue
  - name: Platform
paths:
  /api/v1/campaigns/{campaign}/send:
    post:
      tags:
        - Campaigns
      summary: Send now
      description: >-
        Checks first that the campaign is ready (list, subject, content,
        recipients, an allowed sender). The e-mails then leave through the
        queue, at the provider's pace.
      operationId: api.campaigns.send
      parameters:
        - name: campaign
          in: path
          required: true
          schema:
            type: string
            format: uuid
          description: The campaign's identifier (uuid).
        - $ref: '#/components/parameters/IdempotencyKey'
      responses:
        '200':
          description: Sending started.
          content:
            application/json:
              schema:
                type: object
                properties:
                  message:
                    type: string
                  queued:
                    type: integer
              example:
                message: 110 e-mails are on their way.
                queued: 110
        '401':
          $ref: '#/components/responses/Unauthenticated'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
        '422':
          description: The campaign is not ready.
          content:
            application/json:
              schema:
                type: object
                properties:
                  message:
                    type: string
                  problems:
                    type: array
                    items:
                      type: string
              example:
                message: This campaign cannot be sent yet.
                problems:
                  - Write a subject.
        '429':
          $ref: '#/components/responses/TooManyRequests'
components:
  parameters:
    IdempotencyKey:
      name: Idempotency-Key
      in: header
      required: false
      schema:
        type: string
        maxLength: 255
      description: >-
        Replay a write safely: the same key gives back the first answer for 24
        hours (header Idempotent-Replay: true).
  responses:
    Unauthenticated:
      description: No token, or an invalid or revoked one.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Message'
          example:
            message: Unauthenticated.
    Forbidden:
      description: The token lacks the ability needed, or the team is suspended.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Message'
    NotFound:
      description: Nothing of that uuid in the token's team.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Message'
    TooManyRequests:
      description: >-
        The token's limit is reached. Wait the number of seconds Retry-After
        gives.
      headers:
        X-RateLimit-Limit:
          schema:
            type: integer
          description: Calls allowed per minute for this token.
        X-RateLimit-Remaining:
          schema:
            type: integer
        Retry-After:
          schema:
            type: integer
  schemas:
    Message:
      type: object
      properties:
        message:
          type: string
  securitySchemes:
    bearer:
      type: http
      scheme: bearer
      description: >-
        An API token. The "read" ability: GET routes only. "read + write": every
        route.

````